title: Thiazolidine ring conformation is not connected with potency of penicillins.
authors.affiliation: Institut of Drug Research, Academy of Sciences, GDR, Berlin.
authors.forename: A
authors.initials: A
authors.lastname: Koch
authors.forename: R
authors.initials: R
authors.lastname: Kühne
authors.forename: R
authors.initials: R
authors.lastname: Franke
mesh_terms: D008968:Molecular Conformation; D010400:Penicillin G / Q000031:analogs & derivatives / Q000737:chemistry / Q000494:pharmacology; D010406:Penicillins / Q000737:chemistry / Q000494:pharmacology*; D010878:Piperacillin / Q000737:chemistry; D013329:Structure-Activity Relationship; D014961:X-Ray Diffraction
chemical_list: D010406:Penicillins; C067363:bacbenzylpenicillin; D010400:Penicillin G; D010878:Piperacillin